1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

FWD done right

Discussion in 'Automobilista 2 - General Discussion' started by 2ndLastJedi, Jul 5, 2021.

Page 3 of 3
  1. CrimsonEminence

    CrimsonEminence Custom Title Staff Member AMS2 Club Member

    Joined:
    Nov 4, 2018
    Messages:
    9,897
    Likes Received:
    10,215
    The rear axle shouldn't be adjustable at least. It should be locked to 0. Drove Copa Gol B yesterday and this one had it locked.^^
     
    CrimsonEminence, Jul 9, 2021
    #41
  2. Haris1977

    Haris1977 Active Member

    Joined:
    Apr 7, 2020
    Messages:
    400
    Likes Received:
    105
    Yeap. Rear anti roll is locked to 0 for the copa cars if i remember correctly
     
    Haris1977, Jul 9, 2021
    #42
  3. CrimsonEminence

    CrimsonEminence Custom Title Staff Member AMS2 Club Member

    Joined:
    Nov 4, 2018
    Messages:
    9,897
    Likes Received:
    10,215
    An example for the loose rear situation in FWD racing cars (Copa Classic allegedly exaggerated), that are deliberately set up to oversteer.
    The driver here is entering corners with his FIAT even by countersteer.

    There is a reason, why you see "odd" rear tire pressures etc., the only reason you have the wheels at the rear of the FWD car is to provide it does actually not scrape the ground. Every rolling resistance, pulling these wheels and hesistance to turn will make you slower. Everything is executed over the front axle.
     
    CrimsonEminence, Jul 10, 2021
    #43
    • Like Like x 1
  4. McClutch

    McClutch Well-Known Member

    Joined:
    Jan 30, 2021
    Messages:
    832
    Likes Received:
    334
    The rear axle in FWD cars it what provides the directional stability, and you want some in the long term. You don't want a much to light rear. While toe can be neutral, you might want to have a reasonable value of camber in the rear. 0,5to 1 ° more than in the front. I used to put some weight back into the rear after stripping the cars, either by placing the starter battery there, or by 10kg steel weights screwed to where the spare wheel was before.
     
    McClutch, Jul 10, 2021
    #44
  5. CrimsonEminence

    CrimsonEminence Custom Title Staff Member AMS2 Club Member

    Joined:
    Nov 4, 2018
    Messages:
    9,897
    Likes Received:
    10,215
    I just noticed, i wrote "negative toe" some posts ago. Was probably late. (Wanted to do the smartass and quote it right now and noticed my mistake, adding negative toe to the rear doesn't even make sense :D ) I meant to say add negative camber to the rear. Yes. You can calm a lot of FWD cars by adding rear camber also in AMS2. But don't expect your times to improve with too much directional stability. You are literally seeing a brazilian FWD race car on typical base in action there and why it isn't exaggerated and not comparable with Aygos and Golf IV GTIs
     
    CrimsonEminence, Jul 10, 2021
    #45
  6. McClutch

    McClutch Well-Known Member

    Joined:
    Jan 30, 2021
    Messages:
    832
    Likes Received:
    334
    O.K. I prefer a precision style of driving and i want a stable rear. RL I used myself a lot of times to get more wieght there. IN the Aygo types, due to the short wheelbase, you can achive 50/50 weight by just shifting the seat and your own heavy ass 10 cm to the rear, same effect like a full tank. Long legs help a lot ;)
     
    McClutch, Jul 10, 2021
    #46
  7. CrimsonEminence

    CrimsonEminence Custom Title Staff Member AMS2 Club Member

    Joined:
    Nov 4, 2018
    Messages:
    9,897
    Likes Received:
    10,215
    Yeah okay, that's driving preferences. I like the loose tail with FWD racing for example, you can point your car into the corner by lifting the throttle and use the shifted "vector" to pull it out of the corner on the front axle, but for stability it was always sufficient to add more camber to the rear in AMS2 and 1 tbh. and not really a big deal.

    For the JCW, right now it's best to "feed it in" instead of trying to turn it fast. It will become more prone to turn then, i noticed. (Car remains a bit odd, not arguing with that)
    But this also helps with FWDs in general (not only AMS2).

    Btw. even if it helps with stability, it isn't favourable to add weight for distribution sake to a race cars axle position.^^' The Aygo method of changing seat position is a better one by far.
     
    CrimsonEminence, Jul 10, 2021
    #47
  8. Haris1977

    Haris1977 Active Member

    Joined:
    Apr 7, 2020
    Messages:
    400
    Likes Received:
    105
    Nice video, really enjoyed it :) It reminds me the way i drive these fw cars, with the countersteer effect, especially when i brake from 180 km/h and turn the wheel;)

    Btw, would love to see this "engine sound" imported to copa cars :) Now copa cars sound a little bizzare for my taste
     
    Haris1977, Jul 10, 2021
    #48
  9. CrimsonEminence

    CrimsonEminence Custom Title Staff Member AMS2 Club Member

    Joined:
    Nov 4, 2018
    Messages:
    9,897
    Likes Received:
    10,215
    The engine sound of the copa cars is not inaccurate. The engine sound in the video is from a Fial Palio, not an Uno
     
    CrimsonEminence, Jul 10, 2021
    #49
    • Informative Informative x 1
  10. Haris1977

    Haris1977 Active Member

    Joined:
    Apr 7, 2020
    Messages:
    400
    Likes Received:
    105
    Well , sound can be a matter of preference i know, but i think it needs more "engine harshness" (it s difficult to explain it in english;))
     
    Haris1977, Jul 10, 2021
    #50
Page 3 of 3

Share This Page